Changsong Ma

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Grain-oriented silicon steel having heat-resistant magnetic domain...
- Patent number 11,633,809
- Issue date Apr 25, 2023
- Baoshan Iron & Steel Co., Ltd.
- Shuangjie Chu
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for manufacturing stress-relief-annealing-resistant, low-iro...
- Patent number 11,459,634
- Issue date Oct 4, 2022
- Baoshan Iron & Steel Co., Ltd.
- Shuangjie Chu
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Laser-scribed grain-oriented silicon steel resistant to stress-reli...
- Patent number 11,355,275
- Issue date Jun 7, 2022
- Baoshan Iron & Steel Co., Ltd.
- Zipeng Zhao
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
HIGH-MAGNETIC-INDUCTION ORIENTED SILICON STEEL AND MANUFACTURING ME...
- Publication number 20220275470
- Publication date Sep 1, 2022
- Baoshan Iron & Steel Co., Ltd
- Huabing ZHANG
- C21 - METALLURGY OF IRON
Information Patent Application
A GRAIN-ORIENTED SILICON STEEL HAVING HEAT-RESISTANT MAGNETIC DOMAI...
- Publication number 20210023659
- Publication date Jan 28, 2021
- Baoshan Iron & Steel Co., Ltd
- Shuangjie CHU
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
METHOD FOR MANUFACTURING STRESS-RELIEF-ANNEALING-RESISTANT, LOW-IRO...
- Publication number 20200362433
- Publication date Nov 19, 2020
- Shuangjie CHU
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
LASER-SCRIBED GRAIN-ORIENTED SILICON STEEL RESISTANT TO STRESS-RELI...
- Publication number 20200058434
- Publication date Feb 20, 2020
- Baoshan Iron & Steel Co., Ltd
- Zipeng ZHAO
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
NON-ORIENTED ELECTRICAL STEEL PLATE WITHOUT CORRUGATED FAULT AND PR...
- Publication number 20130224064
- Publication date Aug 29, 2013
- Feng Zhang
- C21 - METALLURGY OF IRON